Salem is a city located in Marion County, Illinois. Salem has a 2025 population of 6,951 . It is also the county seat of Marion County . Salem is currently declining at a rate of -0.93% annually and its population has decreased by -4.44% since the most recent census, which recorded a population of 7,274 in 2020.
The average household income in Salem is $73,933 with a poverty rate of 20.12%. The median age in Salem is 38.2 years: 37.8 years for males, and 38.7 years for females. For every 100 females there are 85.6 males.
Data after 2023 is projected based on recent change
The racial composition of Salem includes 90.03% White, 4.17% Black or African American, and smaller percentages for Two or more races, other race, Asian and multiracial populations.
White (90.03%)
Black or African American (4.17%)
Two or more races (2.89%)
Other race (2.02%)
Asian (0.9%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 6,609 | 90.03% |
| Black or African American | 306 | 4.17% |
| Two or more races | 212 | 2.89% |
| Other race | 148 | 2.02% |
| Asian | 66 | 0.9% |
Married
Widowed
Divorced
Separated
Never Married
Salem's average per capita income is $46,007. Household income levels show a median of $57,083. The poverty rate stands at 20.12%.
Name | Median | Mean |
|---|---|---|
| Married Families | $93,835 | - |
| Families | $69,438 | $91,023 |
| Households | $57,083 | $73,933 |
| Non Families | $35,991 | $44,564 |
Average Income
Median Household Income
Poverty Rate